Core loss component current decreases, Magnetizing component current decreases Impedance is proportional with respect to own KVA rating Decrease rise time and increase overshoot Va and Vb are negative sequence component voltages the difference angle between Va and Vb with respect to Va is a b c d Ans: Practical method of improving string efficiency a Increasing crass arms length b Using different size of fir c Using different insulator materials d Using of aptranscoo rings Ans: In ceiling fan the angle between auxiliary winding a main winding is a 0 deg b 90 deg c deg papees deg Ans: In Gauss Seidel method the following factors are influenced for operation a Acceleration factor b Selection of slack buss c Both d None Ans: For SR latch whent the out put is undesirable a 0, 0 b 1, 0 c 0, 1 d 1, 1 Ans: Long lines only 2.
If direction of rotation is reversed, then machine will a Build up its voltage with same polarity b Build up its voltage with opposite polarity c No build up of voltage d None Ans: A dc cumulatively compounded motor delivers rated load torque at rated speed. For parallel operation of transformer at no load, then load shared are equal when a Impedance is proportional with respect to own KVA rating b c d Ans: Heat convection, radiation, and conduction all are takes place in aptrabsco Ice b Boiler c Refrigerator d Flue gases in pipe Ans: In bode plot the point which paapers the lower and upper frequencies is called a Critical point b Cut-off point c d Ans: Find us on Facebook Electricalengineerz.
Good regulation means a Less fluctuations from no-load to full-load b c d Ans: Power factor will be lowered When sine wave is given as input to Schmitt trigger then its generates a Sine wave b Saw tooth wave c Triangle wave d Square wave Ans: Transient stability can be improved by a By putting series capacitor b By using dynamic resister c Auto re-closers d All of the above Ans: Vab is reference then angle between Vab and Ib is a deg b deg c deg d deg Ans: Linkbar Home careers blogs Apcpdcl.
The following element retains it energy after source is disconnected a Resister b Inductor c Capacitor elechrical Thermistor Ans: Mho relay is usually employed for the protection of a Short lines only b Medium lines only c Long lines only d Any line Ans: Find Z11 and Z I changed my font at thecutestblogontheblock. Less fluctuation from no-load to full-load If series field is short circuited, then the armature current and speed will a Both increases b Both decreases c Prevuous and decreases d Decreases and increases Ans: Low-pass filter function ii.
Lag net work The two watt meters measurement the ratio of two meter readings is — 1-sqrt3: Subscribe To Posts Atom.
All of the above Flue gases coming out from furnace is first going through a Turbine b Economizer c Air pre-heater d Chimney Ans: A CRO screen has ten divisions on the horizontal scale.
When Alternator excitation increases and machine is operating at lagging power factor then a I increase b I decreases c No effect on current d None Ans: Harmonics are eliminated by using a Skewing of rotor b Distribution winding c Short pitch winding d All of aptranzco above Ans: Find Vab a Zero b 50 at an angle of 90 deg c 50 at an angle of 90 deg d None Ans: When moving iron meter is used to measure d.
Which is the most suitable power device for high frequency more kHz switching application?
Which of the following plant is having lowest load factor? In Induction motor Slip frequency of rotor current, when rotor speed is Nr.
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